Question
bonjour est ce que vous pourriez m'aider a faire ce devoir en mathématique: factoriser chaque expression: A=(x-2)(x+1)+(3-7x)(x-2) B=(x+4)(-7+2x)+(3x-1)(x+4) C=(5x+1)(x+6)+(5x+1)2D=(2x-7)2-(-8x+3)(2x-7)
Asked by: USER7234
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202 Answers
Answer (202)
A=(x-2)(x+1)+(3-7x)(x-2)
=(x-2)[(x+1)+(3-7x)]
=(x-2)(x+1+3-7x)
=(x-2)(-6x+4)
B=(x+4)(-7+2x)+(3x-1)(x+4)
=(x+4)(-7+2x+3x-1)
=(x+4)(5x-8)
=(x-2)[(x+1)+(3-7x)]
=(x-2)(x+1+3-7x)
=(x-2)(-6x+4)
B=(x+4)(-7+2x)+(3x-1)(x+4)
=(x+4)(-7+2x+3x-1)
=(x+4)(5x-8)